RT Journal Article SR Electronic T1 Unintended subcutaneous and intramuscular injection by drug users JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 1425 OP 1426 VO 163 IS 11 A1 Catherine Hankins A1 Darlene Palmer A1 Ravinder Singh YR 2000 UL http://www.cmaj.ca/content/163/11/1425.abstract